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  3. Nile Blue A sulfate

Nile Blue A sulfate  (Synonyms: 硫酸耐尔蓝A; 硫酸尼罗蓝; 硫酸耐尔蓝; Nile blue sulfate)

目录号: HY-101900 纯度: ≥98.0%
COA 产品使用指南

Nile Blue A (Nile blue sulfate) 可用于区分黑色素和脂褐素。它也可用于脂肪染色,以及制备电流葡萄糖传感器。

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Nile Blue A sulfate Chemical Structure

Nile Blue A sulfate Chemical Structure

CAS No. : 3625-57-8

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Free Sample (0.1 - 0.2 mg)   Apply now  
10 mM * 1 mL in DMSO ¥550
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100 mg ¥500
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Customer Review

  • 生物活性

  • 实验参考方法

  • 纯度 & 产品资料

  • 参考文献

生物活性

Nile Blue A (Nile blue sulfate) is used to differentiate melanins and lipofuscins. It is also useful for staining fats and preparation of an amperometric glucose sensor[1].

体外研究
(In Vitro)

Nile blue A is a basic oxazine dye which is soluble in water and ethyl alcohol. Nile blue A is a satisfactory stain for PHB granules in bacteria and is in fact superior to Sudan black B for this purpose. Poly-p3-hydroxybutyrate granules exhibits a strong orange fluorescence when stained with Nile blue A. Nile blue A appears to stain many more PHB granules than Sudan black B does and is not as easily ished from the cell by decolorization procedures[1]. Nile blue A is used as a stain for polyhydroxyalkanoic acid-accumulating microorganisms or to detect polyhydroxyalkanoic acids in microorganisms. Escherichia coli cells that do not accumulate detectable polyhydroxyalkanoic acids can be stained with Nile blue A and that this staining is sufficient for identifying these cells in fluorescence-activated cell sorting (FACS) experiments. Nile blue A staining does not affect either surface display of peptides or specific labeling of these peptides by a second fluorescence. Staining E. coli for flow cytometry using Nile blue A is an easy-to-handle and low-cost alternative to other fluorescent dyes or the intracellular expression of, for example, green fluorescent protein[2]. Nile blue A is one of the most studied benzophenoxazine dyes, as a potent photosensitizer for photodynamic therapy. The dye when administered intravenously disperses throughout the body by circulating through blood and is taken up by most cells that emphasize its interaction with various biomolecule[3].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

分子量

366.42

Formula

C20H20N3O.1/2O4S2

CAS 号
性状

固体

颜色

Light brown to black

中文名称

硫酸耐尔蓝A;硫酸尼罗蓝

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

4°C, sealed storage, away from moisture and light

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)

溶解性数据
In Vitro: 

DMSO 中的溶解度 : ≥ 150 mg/mL (409.37 mM; 吸湿的 DMSO 对产品的溶解度有显著影响,请使用新开封的 DMSO)

H2O 中的溶解度 : < 0.1 mg/mL (insoluble)

* "≥" means soluble, but saturation unknown.

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 2.7291 mL 13.6455 mL 27.2911 mL
5 mM 0.5458 mL 2.7291 mL 5.4582 mL
查看完整储备液配制表

* 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)。-80°C储存时,请在6个月内使用,-20°C储存时,请在1个月内使用。

  • 摩尔计算器

  • 稀释计算器

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

质量
=
浓度
×
体积
×
分子量 *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

浓度 (start)

C1

×
体积 (start)

V1

=
浓度 (final)

C2

×
体积 (final)

V2

动物溶解方案计算器
请输入动物实验的基本信息:

给药剂量

mg/kg

动物的平均体重

g

每只动物的给药体积

μL

动物数量

由于实验过程有损耗,建议您多配一只动物的量
计算结果
工作液所需浓度 : mg/mL
纯度 & 产品资料
参考文献
Cell Assay
[1][2][3]

1% aqueous solution of Nile blue A is prepared and filtered before use. Mild heating may be necessary to fully dissolve the stain. Heat-fixed smears of bacterial cells are stained with the Nile blue A solution at 55°C for 10 min in a coplin staining jar. After being stained, the slides are washed with tap water to remove excess stain and with 8% aqueous acetic acid for 1 min. The stained smear is washed and blotted dry with bibulous paper, remoistened with tap water, and covered with a no. 1 glass cover slip. The preparation is examined with a Nikon Labphot microscope with an episcopic fluorescence attachment[1]. The PHA− strain Escherichia coli UT5600(DE3) is stained with Nile blue A. In an Erlenmeyer flask, 20 mL of Luria–Bertani (LB) broth is inoculated with one colony of UT5600(DE3) and incubated for 14 h at 37 °C and 200 rpm. Subsequently, 20 mL of LB broth containing Nile blue A in a final concentration of 0.5 μg/mL is inoculated with 200 μL of the 14-h culture and cultured to an optical density at 578 nm (OD578) of 0.6. As a control, 20 mL of LB broth (without Nile blue A) is inoculated with 200 μL of the 14-h culture and is also cultured to an optical density at OD578 of 0.6. Every 20 min, the OD578 is determined for both cultures to verify whether there is any influence of the dye on the growth of the bacteria[2]. Nile blue A stock solution is prepared using ethanol as the solvent. The concentration of NB is maintained at 5 μM for all the studies. The solutions are left for 1 h to achieve equilibrium before spectral measurements. The absorption spectra are recorded using Shimadzu Spectrophotometer (UV-1800) and the emission spectra are recorded using Jobin–Yvon Spectrofluorimeter. A 450 nm nano-LED is used as the light source and the fluorescence lifetime is collected at λem=672 nm[3].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

参考文献

Nile Blue A sulfate 相关分类

完整储备液配制表

* 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)。-80°C储存时,请在6个月内使用,-20°C储存时,请在1个月内使用。

可选溶剂 浓度 溶剂体积 质量 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.7291 mL 13.6455 mL 27.2911 mL 68.2277 mL
5 mM 0.5458 mL 2.7291 mL 5.4582 mL 13.6455 mL
10 mM 0.2729 mL 1.3646 mL 2.7291 mL 6.8228 mL
15 mM 0.1819 mL 0.9097 mL 1.8194 mL 4.5485 mL
20 mM 0.1365 mL 0.6823 mL 1.3646 mL 3.4114 mL
25 mM 0.1092 mL 0.5458 mL 1.0916 mL 2.7291 mL
30 mM 0.0910 mL 0.4549 mL 0.9097 mL 2.2743 mL
40 mM 0.0682 mL 0.3411 mL 0.6823 mL 1.7057 mL
50 mM 0.0546 mL 0.2729 mL 0.5458 mL 1.3646 mL
60 mM 0.0455 mL 0.2274 mL 0.4549 mL 1.1371 mL
80 mM 0.0341 mL 0.1706 mL 0.3411 mL 0.8528 mL
100 mM 0.0273 mL 0.1365 mL 0.2729 mL 0.6823 mL
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  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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产品名称:
Nile Blue A sulfate
目录号:
HY-101900
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